543043388021386 has 16 divisors (see below), whose sum is σ = 979927918234560. Its totient is φ = 220483781602560.

The previous prime is 543043388021357. The next prime is 543043388021389. The reversal of 543043388021386 is 683120883340345.

It is a happy number.

It is a super-2 number, since 2×543043388021386² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 543043388021386.

It is not an unprimeable number, because it can be changed into a prime (543043388021389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020758247895 + ... + 1020758248426.

It is an arithmetic number, because the mean of its divisors is an integer number (61245494889660).

Almost surely, 2^{543043388021386} is an apocalyptic number.

543043388021386 is a deficient number, since it is larger than the sum of its proper divisors (436884530213174).

543043388021386 is a wasteful number, since it uses less digits than its factorization.

543043388021386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041516496349.

The product of its (nonzero) digits is 39813120, while the sum is 58.

The spelling of 543043388021386 in words is "five hundred forty-three trillion, forty-three billion, three hundred eighty-eight million, twenty-one thousand, three hundred eighty-six".